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Knowledge Goal ONE
Make 3 digit numbers and explain the hundreds, tens and units in each number.

An example is:
532 = 5 hundreds, 3 tens and 2 units.
532 = 500 + 30 + 2
Warm Up Activities:
Use these websites to help practice this goal:
Make a number on the abacus


Strategy Work:
Bridging through tens.


Knowledge Goal TWO
Find how many tens there are in a 2, then 3, digit number.
Warm Up Activities:
Use these websites to help practice this goal
Lifeguards

Wishball Tens
Strategy Work:
Adding to 100, by counting to the next tidy number then on to 100.

eg. 34 + ? = 100
34 + 6 = 40 + 60 = 100
so 34 + 66 = 100


Sea Shell Rounding